Axle-box cover



(No Model) D.. A. BOLT. AIXLEBOX COVER.

Patented Nov. 29,1881.

INVENTOR (41%.- @m$' ATTORNEYS WITNESSES 5 I npbar. Wa

UNITED STATES PATENT OFFICE.

DANIEL A. BOLT, OF STILLWATER, MINNESOTA.

AXLE-BOX COVER.

SPECIFICATION forming part of Letters Patent No. 250,194, dated November 29, 1881.

Application filed September 3, 1881.

To all whom it may concern:

Beitknown that I, DANIEL A-BOLT, of Stilt water, Washington county, Minnesota, have inventedanew and useful Improvement in Covers for Axle-Boxes, of which the following is a specification.

The object of my invention is to provide an efficient, easily-operated, and cheaply-constructed lid or cover for the axle-boxes of railroad and similar trucks, and one having such construction and arrangement that it will close from the jar or motion of the truck, if accidentally left open.

The invention consists of side pieces or facings, which are cast with or secured upon the face of the box, formed with the grooves or ways in which the cover or lid moves, and with projections at their upper ends for limiting the upward movement of the cover or lid, in combination with the lid formed with a bar or rod across its lower end, the sides of the lid being formed with cams or wedge-shaped projections to correspond with similar projections formed in the grooves or ways to hold the lid tightly in place when .closed and to prevent all rattling of the lid when the cars are in motion.

Reference is to be had to the accompanying drawings, forming part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure l is side elevation, partlyin section, of an axle-box having my improved cover attached. Fig. 2 is an edge view of the cover, and Fig.3 is a front elevation of the lid, showing theside pieces and box in dotted lines. Fig. 4 is a detailed view, showing one of the ways in which the cover moves.

In the drawings, A represents the ordinary form of axle-box of a railroad-truck, the diagonal side edges of which box are formed or cast with the side pieces, B B, which are formed with the grooves or ways I) b, in which the cover or lid 0 is adapted to move. These side pieces, B B, are formed at their upper ends with the projections d d, and with the wedge-shaped projections e e, which are in the grooves or ways b b. The lid or cover is formed with the correspondingwedge-shaped projections 00, which come against the projections e 6 when the lid (No model.)

is closed, as shown in Fig. 1, and thus cause the lid to be closed tightly against the faces of the grooves or ways, so that no dust can enter the box, and so that the lids cannot rattle. v

The lower part of the cover upon the outside is provided with the perforated lugs f f, through which the rod F passes. The ends of this rod projectbeyond the said lugs and reach over the upper edges of the side pieces, B B, so that when the lid is raised to open the box the ends of this rod will come in contact with the projections 01 d, to prevent loss of the lid and cause the lid to tip back to the position shown in dotted lines in Fig. 1, where it will remain it the truck is at rest until put to place by hand, but which will drop to place of its own accord from the jar or motion of the truck when the cars are in motion, thus preventing all possibility of leaving the axle exposed to' the dust of the road for any great distance.

The front face of the cover is cast with the projection D, to serve as a hand-lift for raising and lowering the lid.

The upper ends of the side pieces, B B, extend above the top plate, A, of the box, as shown in Fig. 4, so that when the cover or lid is lifted up'it will be free to tip back over the top of the box, and will rest in that position, as above described.

I am aware that car-axle boxes have been provided with wedge-shaped grooves to receive the corresponding-shaped edges of the lid, and I am also aware that they have been provided with grooved ears to receive the projections on the lid; but

What I claim, and desire to secure by Letters Patent, is-

The combination, with grooved side pieces, B, provided with the projections d at their upper ends, and with the wedge-shaped projec-. tions in the grooves, of the lid 0, provided with the perforated lugs f, the rod F, and the wedgeshaped projections c on the inner face of its edge, substantially as and for the purpose set forth.

DANIEL A. BOLT.

\Vitnesses:

H. J. CHAMBERS, ABE HALL. 

